Sheet-metal roofing



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W. T. HOLZBAOH. SHEET METAL ROOFING.

No. 511,775. Patented Jan. 2, 1894.

UNITED STATES PATENT @rrrcn.

WILLIAM T. HOLZBAOH, OF NILES, OHIO.

SHEET-METAL ROOFING.

SPECIFICATION forming part of Letters Patent No. 511,775, dated January2, 1894.

Application filed September 14, 1893- Serial No. 485,485. (No model.)

To aZZ whom it may concern:

Be it known that 1, WILLIAM T. H OLZBACH, a citizen of the UnitedStates, residing at Niles, in the county of Trumbull and State of Ohio,have invented certain new and useful Improvements in Sheet-MetalRoofing; and I do hereby declare the following to be a full, clear, andexact description of my invention, such as will enable others skilled inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, which form part of this specification.

My invention relates to means for fastening rectangular plates or sheetsof Iiat metal roofing to the roof boards and of forming and capping thejoints, and its object is a device whereby, without the use of nails orany perforation of the plates, they are securely fastened to the roofboards, and a joint between them is made that is absolutely imperviousto water, while the expansion and contraction of the plate material arewholly, and at all times, without injurious effect, thus removing thechief objections that have hitherto existed to sheet metal roofing,namelyz-(first) liability to become leaky by reason of corrosionsresulting from the entrance of moisture into perforations occupied bynails or screws, enlarged by expansion and contraction; (second)loosening of nails, or other means of fastening, by expansion andcontraction of the plates; and (third) inability to seal the jointbeyond danger from the same causes. I accomplish this object by themeans hereinafter described and illustrated in the drawings, in whichFigure 1 is a side view of a section of a roof board carrying thestaples s and the doubly curved wire w, ready to receive and retain theangled sides of the roofing plates 19. Fig. 2 is a cross section view ofthe same on the line so wot Fig. 1. Fig. 3 is aside view of a section ofa roof board carrying the staples s and the doubly angled wire w readyto receive and retain the angled sides of the roofing plates 12. Fig. 4is a cross section view of the key-cap c. Fig. 5 is a view as in Fig. 1with the plates 19 in place, secured by the wire w. Fig. 6 is a crosssection view of the same. Fig. 7 is a side view of a section of roofwith the key-cap c in place and complete. Fig.8 is a cross section viewof the same. Fig. 9 is a side view of two sections of the key-cap c, theends joined by an overlap, showing in dotted lines the edges of theportions in each that are turned upward at an acute angle forming thespaces a a; and Fig. 10 is a side View of a section of the key-cap, 0,showing the triangular notches 71 therein.

Similar letters refer to similar parts in all views.

The novel features of my invention consist of the wires 10 and to,either for use as may be preferred, attached to the roof by staples, orother suitable means, and extending upward, doubly curved or bent toangles as shown to clasp over the edges of the contiguous upwardprojecting portions or angles of the plates 10 upon their right and leftsides alternately; and also of the key-cap c which is a strip of metalof suitable breadth bent 011 the line of its breadth center to an acuteangle, each edge being again bent inward to acute angles forming thespaces a a, which, when the key-capo is in place covering the contiguousupward angles of the plates 19, hold the curves of the wire to that areconvex to the roofing board, or the downward pointing apices of the wireto. The rectangular and similar roofing plates p, having a narrow stripon two sides turned upward at right angles with the surface of the plateare not new.

The new features above pointed out will be more fully understood whentheir methods of application, and uses, are described, which I will nowproceed to do.

Most conveniently the workman strikes a line upon the roofing boards orslats from eaves to ridge along which at suitable intervals he drivesthe staples 5 through which the wire w is drawn and curved verticallyto, preferably, a half circle, after which each staple by a blow of thehammer is tightened into the board. By the use of a tool provided forthat purpose the upper portion of each curvature is bent over laterallyto an acute angle, such bends being alternately right and left. One bendfor each plate is usually sufficient and separate short wires may beused if the plates are large, for economy. The lateral bending of thecurves brings the portion of the wire w that has thus become convex tothe roof boards at such exact dis- IOC above described would also bewithin the scope and spirit of my invention.

lVhile I prefer staples as a means of fastening any other means thatwill secure the wire to the roof may be used.

"For larger operations, and to facilitate the work of the practicalroofers, the wires t0 and w, or any variations of them, may be made inquantities by machines constructed for that purpose, and in lengths tobe cut as used, the bends being better effected when the wire is hot.When the wire to or w is attached as above stated, the plates p arepushed to place on its right and left sides, lateral bends clasping overthe upward projecting portions or angles of the plates as seen at Fig.5. The'key-cap c, which has been described, is then placed over thecontiguous upward projections or angles of the plates 13, joined, andsecured to the roof boards as explained, and, beginning preferably atthe lower end is slid to place, the lower portions of the curved part ofthe wire to that is convex to the roof board, or the downward projecting apices of the wire to, being clasped within cept that triangularnotches are cut from the lower edges upward in the two sides of thekey-cap c at suitable intervals, to permitthe curving necessary.

My invention will now be understood and its value in the art of sheetmetal roofing, as the full accomplishment of the object stated in thebeginning of this specification, will be appreciated.

What I claim is 1. In sheet metal roofing, in combination with sheetmetal roofing plates having the edges upon two sides turned upward atright angles, a wire presenting a series of bends, upward and downward,from the roof boards to which it is secured by a fastening between eachbend, the upper portions of the bends being again bent, alternatelyright. and left, to acute angles with the vertical portions,substantially as described and for the purpose expressed.

2. In sheet metal roofing a roof formed in combination by the sheetmetal roofing plates 19, having their edgesupon two .sides turned upwardat right angles; the wire to presenting a series ofupward curvatures,secured to the roof boards or slats between each curvature, the upperportions of each curvature being similarly bent alternately right andleft to acute angles with its vertical portion; and the key-cap 0 beinga suitable strip of metal bent on the line of its breadth center to anacute angle and having the lower edge of each side turned inward toacute angles forming the spaces Ct at, all substantially as describedand for the purpose expressed.

' In testimony whereof I hereunto affix my signature in the presence oftwo witnesses. WILLIAM T. HOLZBAOH. WVitnesses:

GEORGE A. HOLZBAOH, G. W. TUCKER.

